Strange behavior of GDB in Creator 1.3

Hello to the list,
I have installed the Qtcreator 1.3/Qt 4.6 SDk on fedora 12. No problems on install and none in developing a small application which runs OK from Qtcreator. But when I try to use debug I get a message:-
during startup program exited with error 127
which seems to mean it cannot find QtCorelib.
Now when I run GDB from the command line I have no problems and program starts up ok.
In Creator when I stop the debugger everything seems to be normal but I cant get any response from the debugger. If I close Creator I get a message saying that a debug session is still active.
Have i forgotten something?. Any advice will be welcomed.

rayjc

Debugger related problems are usually solved by making the content of the right pane of Debug->Views->Debugger available.